Based on your original post, I assume that at some point you witnessed the water from the spray heads operating at a ‘normal spray level’… If so, here are some items you can check; 1) Remove the lid from the tank in which the pump is installed, raise the float with a hook and watch for water spray inside the tank. Monitor this until the tank is down to the level that the pump would shut off. If you have a broken or cracked line inside the tank, you may be losing the majority of the pump pressure before the water ever leaves the tank. 2) Something maybe stopping up the intake on the pump 3) The impellers in the pump may be wearing out to the point that they just will no longer put out the original pressure. NOTE: If this was a sudden change, then items 1 or 2 is more likely, if the change was gradual, then item 3 is more likely.